WINMILL MARK CAMPBELL
President and CEO
WINMILL MARK CAMPBELL has filed 4 SEC Form 4 filings (11 transaction rows) across 1 company, with disclosures dating back to 2025. 4 of those filings fall inside the rolling window. Most recent filing: Sep 11, 2026.
On the most recent filing, WINMILL MARK CAMPBELL is listed as President and CEO at Global Self Storage, Inc. Inside the rolling window, WINMILL MARK CAMPBELL reported 6 open-market purchases totaling $126K in SELF and no open-market sales. The largest disclosed transaction in the window is a purchase of 6,000 SELF shares on Dec 4, 2025, worth $31K.
Companies traded
Other insiders at SELF
Insider Buying
$126K
reported purchases (SEC code P)
Insider Selling
$0
reported sales (SEC code S)
Companies
1
in the rolling window
Frequently asked questions
How many SEC Form 4 filings has WINMILL MARK CAMPBELL made?
WINMILL MARK CAMPBELL has filed 4 SEC Form 4 filings (11 transaction rows) across 1 company since 2025.
Which companies does WINMILL MARK CAMPBELL trade?
WINMILL MARK CAMPBELL has filed SEC Form 4 disclosures for 1 company, including SELF.
When was WINMILL MARK CAMPBELL's most recent SEC Form 4 filing?
WINMILL MARK CAMPBELL's most recent SEC Form 4 filing on Tracefour is dated Sep 11, 2026.
What is WINMILL MARK CAMPBELL's job title?
On the most recent SEC Form 4 filings tracked by Tracefour, WINMILL MARK CAMPBELL is listed as President and CEO.
What is WINMILL MARK CAMPBELL's total buy and sell value in the current window?
Inside the rolling retention window, WINMILL MARK CAMPBELL bought $126K and sold $0 based on SEC Form 4 filings.
What was WINMILL MARK CAMPBELL's largest disclosed transaction?
The largest disclosed transaction in the current window is a purchase of 6,000 SELF shares on 2025-12-04, worth $31K, per SEC Form 4 filings.